We look at the division of 72778799 by 839 
Let's see how many times 839 fits into 72778799.

Step 1:
If we divide 7 by 839, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 839

Going ahead to step 2:
839 goes into 72 0 times with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Take the next digit (7) from the dividend and append it to 72, then repeat: 727 / 839

Advancing to step 3:
839 goes into 727 0 times with a remainder of 727.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 727 after subtracting 0 from 727.
Bring next digit (7) of the dividend behind the 727 and repeat the process: 7277 / 839

Going ahead to step 4:
7277 divided by 839 is 8 with a remainder of 565.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 6712 from 7277 leaves us with 565.
Bring next digit (8) of the dividend behind the 565 and repeat the process: 5658 / 839

Going ahead to step 5:
If we divide 5658 by 839, we get 6 and a remainder of 624.
The next digit of our result is 6. 
Result so far: 86.0
Subtracting 5034 from 5658 leaves us with 624.
Fetch the next digit (7) from the dividend, attach it to 624 and continue: 6247 / 839

Step 6:
The number 839 fits into 6247 7 times, leaving a remainder of 374.
The number 7 becomes the next digit in our result. 
Result so far: 867.0
Subtract 5873 from 6247 to get 374.
Grab the next digit (9) from the dividend, add it to 374, then carry on: 3749 / 839

On to step 7:
If we divide 3749 by 839, we get 4 and a remainder of 393.
The number 4 becomes the next digit in our result. 
Result so far: 8674.0
If we take 3356 away from 3749, we end up with 393.
Append the next digit (9) from the dividend to 393 and continue with: 3939 / 839

Let's proceed to step 8:
839 goes into 3939 4 times with a remainder of 583.
The next digit of our result is 4. 
Result so far: 86744.0
If we take 3356 away from 3939, we end up with 583.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5830, and continue the process.

Let's proceed to step 9:
839 can be fit into 5830 6 times, resulting in a remainder of 796.
Put 6 as the next digit of the answer. 
Result so far: 86744.6
Deduct 5034 from 5830 and we're left with 796.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7960, and continue the process.

Going ahead to step 10:
The number 839 fits into 7960 9 times, leaving a remainder of 409.
Write down 9 as next digit of the result. 
Result so far: 86744.69
Deduct 7551 from 7960 and we're left with 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

On to step 11:
839 can be fit into 4090 4 times, resulting in a remainder of 734.
The next digit of our result is 4. 
Result so far: 86744.694
Subtracting 3356 from 4090 leaves us with 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7340, and continue the process.

Let's proceed to step 12:
7340 divided by 839 is 8 with a remainder of 628.
The number 8 becomes the next digit in our result. 
Result so far: 86744.6948
The remainder is 628 after subtracting 6712 from 7340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

On to step 13:
6280 divided by 839 is 7 with a remainder of 407.
The next digit of our result is 7. 
Result so far: 86744.69487
Deduct 5873 from 6280 and we're left with 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Step 14:
4070 divided by 839 is 4 with a remainder of 714.
Write down 4 as next digit of the result. 
Result so far: 86744.694874
If we subtract 3356 from 4070, we get 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7140, and continue the process.

Advancing to step 15:
839 goes into 7140 8 times with a remainder of 428.
Put 8 as the next digit of the answer. 
Result so far: 86744.6948748
Subtract 6712 from 7140 to get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Moving on to step 16:
The number 839 fits into 4280 5 times, leaving a remainder of 85.
The next digit of our result is 5. 
Result so far: 86744.69487485
Subtract 4195 from 4280 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

The quotient of the division is 86744.69487485, and the remainder is 8.5e-08.